Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [798,2,Mod(31,798)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(798, base_ring=CyclotomicField(6))
chi = DirichletCharacter(H, H._module([0, 1, 5]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("798.31");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 798 = 2 \cdot 3 \cdot 7 \cdot 19 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 798.bc (of order \(6\), degree \(2\), minimal) |
Newform invariants
comment: select newform
sage: f = N[0] # Warning: the index may be different
gp: f = lf[1] \\ Warning: the index may be different
Self dual: | no |
Analytic conductor: | \(6.37206208130\) |
Analytic rank: | \(0\) |
Dimension: | \(28\) |
Relative dimension: | \(14\) over \(\Q(\zeta_{6})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{6}]$ |
$q$-expansion
The dimension is sufficiently large that we do not compute an algebraic \(q\)-expansion, but we have computed the trace expansion.
Embeddings
For each embedding \(\iota_m\) of the coefficient field, the values \(\iota_m(a_n)\) are shown below.
For more information on an embedded modular form you can click on its label.
comment: embeddings in the coefficient field
gp: mfembed(f)
Label | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
31.1 | −0.866025 | − | 0.500000i | −1.00000 | 0.500000 | + | 0.866025i | −2.48042 | − | 1.43207i | 0.866025 | + | 0.500000i | −0.00184546 | − | 2.64575i | − | 1.00000i | 1.00000 | 1.43207 | + | 2.48042i | |||||
31.2 | −0.866025 | − | 0.500000i | −1.00000 | 0.500000 | + | 0.866025i | −1.27570 | − | 0.736523i | 0.866025 | + | 0.500000i | −1.15317 | + | 2.38122i | − | 1.00000i | 1.00000 | 0.736523 | + | 1.27570i | |||||
31.3 | −0.866025 | − | 0.500000i | −1.00000 | 0.500000 | + | 0.866025i | −0.825412 | − | 0.476552i | 0.866025 | + | 0.500000i | 2.56076 | − | 0.665210i | − | 1.00000i | 1.00000 | 0.476552 | + | 0.825412i | |||||
31.4 | −0.866025 | − | 0.500000i | −1.00000 | 0.500000 | + | 0.866025i | 0.455066 | + | 0.262732i | 0.866025 | + | 0.500000i | −2.53656 | + | 0.752229i | − | 1.00000i | 1.00000 | −0.262732 | − | 0.455066i | |||||
31.5 | −0.866025 | − | 0.500000i | −1.00000 | 0.500000 | + | 0.866025i | 1.22260 | + | 0.705869i | 0.866025 | + | 0.500000i | 1.61371 | + | 2.09665i | − | 1.00000i | 1.00000 | −0.705869 | − | 1.22260i | |||||
31.6 | −0.866025 | − | 0.500000i | −1.00000 | 0.500000 | + | 0.866025i | 1.57310 | + | 0.908227i | 0.866025 | + | 0.500000i | 0.235464 | − | 2.63525i | − | 1.00000i | 1.00000 | −0.908227 | − | 1.57310i | |||||
31.7 | −0.866025 | − | 0.500000i | −1.00000 | 0.500000 | + | 0.866025i | 3.69678 | + | 2.13434i | 0.866025 | + | 0.500000i | 2.01369 | + | 1.71612i | − | 1.00000i | 1.00000 | −2.13434 | − | 3.69678i | |||||
31.8 | 0.866025 | + | 0.500000i | −1.00000 | 0.500000 | + | 0.866025i | −3.59621 | − | 2.07627i | −0.866025 | − | 0.500000i | 2.46654 | + | 0.957163i | 1.00000i | 1.00000 | −2.07627 | − | 3.59621i | ||||||
31.9 | 0.866025 | + | 0.500000i | −1.00000 | 0.500000 | + | 0.866025i | −1.33335 | − | 0.769808i | −0.866025 | − | 0.500000i | −2.47775 | + | 0.927776i | 1.00000i | 1.00000 | −0.769808 | − | 1.33335i | ||||||
31.10 | 0.866025 | + | 0.500000i | −1.00000 | 0.500000 | + | 0.866025i | −1.27145 | − | 0.734073i | −0.866025 | − | 0.500000i | −0.0182682 | − | 2.64569i | 1.00000i | 1.00000 | −0.734073 | − | 1.27145i | ||||||
31.11 | 0.866025 | + | 0.500000i | −1.00000 | 0.500000 | + | 0.866025i | −0.749790 | − | 0.432892i | −0.866025 | − | 0.500000i | −1.47106 | − | 2.19908i | 1.00000i | 1.00000 | −0.432892 | − | 0.749790i | ||||||
31.12 | 0.866025 | + | 0.500000i | −1.00000 | 0.500000 | + | 0.866025i | 2.08104 | + | 1.20149i | −0.866025 | − | 0.500000i | 0.924173 | + | 2.47909i | 1.00000i | 1.00000 | 1.20149 | + | 2.08104i | ||||||
31.13 | 0.866025 | + | 0.500000i | −1.00000 | 0.500000 | + | 0.866025i | 2.34534 | + | 1.35408i | −0.866025 | − | 0.500000i | 2.44311 | − | 1.01548i | 1.00000i | 1.00000 | 1.35408 | + | 2.34534i | ||||||
31.14 | 0.866025 | + | 0.500000i | −1.00000 | 0.500000 | + | 0.866025i | 3.15840 | + | 1.82350i | −0.866025 | − | 0.500000i | −2.59880 | + | 0.496218i | 1.00000i | 1.00000 | 1.82350 | + | 3.15840i | ||||||
103.1 | −0.866025 | + | 0.500000i | −1.00000 | 0.500000 | − | 0.866025i | −2.48042 | + | 1.43207i | 0.866025 | − | 0.500000i | −0.00184546 | + | 2.64575i | 1.00000i | 1.00000 | 1.43207 | − | 2.48042i | ||||||
103.2 | −0.866025 | + | 0.500000i | −1.00000 | 0.500000 | − | 0.866025i | −1.27570 | + | 0.736523i | 0.866025 | − | 0.500000i | −1.15317 | − | 2.38122i | 1.00000i | 1.00000 | 0.736523 | − | 1.27570i | ||||||
103.3 | −0.866025 | + | 0.500000i | −1.00000 | 0.500000 | − | 0.866025i | −0.825412 | + | 0.476552i | 0.866025 | − | 0.500000i | 2.56076 | + | 0.665210i | 1.00000i | 1.00000 | 0.476552 | − | 0.825412i | ||||||
103.4 | −0.866025 | + | 0.500000i | −1.00000 | 0.500000 | − | 0.866025i | 0.455066 | − | 0.262732i | 0.866025 | − | 0.500000i | −2.53656 | − | 0.752229i | 1.00000i | 1.00000 | −0.262732 | + | 0.455066i | ||||||
103.5 | −0.866025 | + | 0.500000i | −1.00000 | 0.500000 | − | 0.866025i | 1.22260 | − | 0.705869i | 0.866025 | − | 0.500000i | 1.61371 | − | 2.09665i | 1.00000i | 1.00000 | −0.705869 | + | 1.22260i | ||||||
103.6 | −0.866025 | + | 0.500000i | −1.00000 | 0.500000 | − | 0.866025i | 1.57310 | − | 0.908227i | 0.866025 | − | 0.500000i | 0.235464 | + | 2.63525i | 1.00000i | 1.00000 | −0.908227 | + | 1.57310i | ||||||
See all 28 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
133.s | even | 6 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 798.2.bc.a | yes | 28 |
7.d | odd | 6 | 1 | 798.2.m.a | ✓ | 28 | |
19.d | odd | 6 | 1 | 798.2.m.a | ✓ | 28 | |
133.s | even | 6 | 1 | inner | 798.2.bc.a | yes | 28 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
798.2.m.a | ✓ | 28 | 7.d | odd | 6 | 1 | |
798.2.m.a | ✓ | 28 | 19.d | odd | 6 | 1 | |
798.2.bc.a | yes | 28 | 1.a | even | 1 | 1 | trivial |
798.2.bc.a | yes | 28 | 133.s | even | 6 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{28} - 6 T_{5}^{27} - 24 T_{5}^{26} + 216 T_{5}^{25} + 428 T_{5}^{24} - 5034 T_{5}^{23} + \cdots + 19900521 \) acting on \(S_{2}^{\mathrm{new}}(798, [\chi])\).